Hand machine for cutting out several thicknesses of fabric



Feb. 12 1924. v

' E. DUPLESSIS HAND MACHINE FOR CUTTING OUT SEVERAL THICKNESSES OF FABRIC w 1 m t y e m w E r p m h a I: m. w m m Hflw wu :IHH?-iwiitiiwi-:----..L?,.,Q M 2 I 5 Filed Feb.- 20,

Feb. 12 1924.

E. DUPLESSIS HAND MACHINE FOR CUTTING OUT SEVERAL THICKNEFSES 0F FABRIC Filed Feb. 20 1922 3 Sheets-Sheet 2 Patented Feb. 12, 1924.

n ransrarss ear hearse series.

vETIENNE DUPLESSIS, OFF PARIS, FRANCE.

HAND MACHINE FOB CUTTING OUT SEVERAL THICKNESSES OF FABRIC.

Application filed February 20, 1922. Serial No. 538,034.

To all whom it may concern: 7

Be it know n that I, ETIENNE DUPLESSIS, of 63Rue Pigalle, Paris, France, have invented a Hand Machine for Cutting Out 5 Several Thicknesses of Fabric, of which the following is a'full, clear, and exact description. 1 I t The present invention has for its object ahand machine for cutting fabrics in sev-' eral thicknesses, essentially comprising a cutting blade mounted in a vertical guide postso as to receive, in the latter a rapid to and fro movement, in a vertical direction, by means of a plate and a gear transmission the rotation of which, in one direction, is obtained by a rocking lever ac tuated by hand, and, in the other direction, by a returning spring; the various parts of transmission and the controlling lever bein carried b a casin which is secured.

on the guide member of the cutter and is provided with a handle allowing theoperator to direct, on the cuttingout table, the machine which rests on the said table by means of a horizontal runner provided, on

its lower face, with ballsor other rolling members. v

In order that the invention may be clearly understood, the hand machine, for cutting I out fabrics, forming the subject-matter of cutting member, which consists of a sharp vertical blade 1, mounted in a vertical guide post 2 and so arranged in said guide post as to receive, a rapid to-and-fro movement in a vertical direction. I

The sharp blade 1 which is, for that purpose, carried bya slide-rod 3 conveniently guided in a slideway 4, which, in the example illustrated Figs. 1 to 3, is secured on one of the faces of a casing 5, carrying the controlling members, and secured to "i the upper part of the vertical guide post 2 of the cutterwhich is secured, at its base,

Am the toothed segments 16*.

on a runner 6 provided, on its lower face, with balls or other rolling members allowing the operator to easily move the whole of the machine on the cutting table, as will be explained hereafter.

e The to-and-fro movement of the slide-rod 3 and cutter 1 which it carries is obtained by means of a control lever 8 rocking on a, pivot 9 on the front face of the casing 5 and adapted to be actuated by hand, by the operator, against the action of a returning spring 10, secured at one end to the casing and at its other end to the end of said lever 8.

In the form of device illustrated Figs. 1 to 3, the control lever 8 is integral with a pinion or toothed segment 11, constantly gearing with a small pinion 12, keyed on a shaft13 mounted in the checks or side wallsof the casing 5 said shaft carrying a toothed wheel 16 gearing with teeth formed on a shaft 17 also mounted in the checks of the casing.

This shaft 17 projects outside the casing 5 and carries, at one of its ends, a crankplate 18 the crank-pin 19 of which is adjustably connected to the slide-rod 3 by a small link or pitman 20.

Finally, the machine is provided with a presser foot 21 adjustably secured to the casing, so that the vertical position of same may be adjusted according to the thickness of the fabric to be cut out. p

In'the modification illustrated Figs. 4 and 5, the up and down reciprocating movement of the cutter 1 in the vertical guide post 2 is determined by the rotation in one direction or the other, by an eccentric 18 the strap 20 of which is directly attached to the slide-rod 3 carrying the cutter 1 This eccentric, which .is conveniently mounted on the bottom of the casing 5 is held engagedbetween two toothed segments 16 freely mounted on an axis 13, rendered integral with each otherby a common hub and gearing with two pinions 17 keyed on either side of the eccentric 18 t These two segments are normally maintained in the position of rest, illustrated in the drawing, by two coil springs 1O which, passing on grooved rollers 23 freely rotatingabout axes 24, secured in the casing 5, are attached at one of their ends, to a fixed point of the casing and, at the other end,

The hub connecting the two toothed seg' .a eaemniae to permit the operator to direct the machine through the pile of fabrics to be cut out, and it, is mounted on a pivot 26, about which it may be swung, so as to be capable of beingmoved towards or away from the lever 8 as desired, according to the size of the operators hand; the said handle 22 being provided, for that purpose, with a small bolt ,27 engaged in a groove 28' of the casing 5 which may be fixedin sired Po tion, by m an e a't ghte'ni g nut."

The above-described inach in the fiwing manner:

The various thicknesses of fabriote be cut being maintained-one on thejother in the usual manner and the machine being placed in position, by hand, so that the sharp] edge of the blade 1 comes into contactiwith the part ofthe pile of fabrics to be. cut,*the

operator places the thumb of theri'ghthand 1 on the handle 22 secured on the casing 5 and: grasps, withthe other fingers, the end of the control lever 8.

The closing oftthehand and fingers produces a rocking movement of the lever 8, against-the action of, the spring 1Q, and distends the same, and the opening of the hand allows the spring 10'to contracttoieturn the said: lever v to" its startingv position,

These. repeated closing and openingmovemerits of; the, hand determine therefore, by means of the above describedgear control, the alternate rotation in'o'ne direction and in the other crank-plate, 18c and the rapid up and down movements of the cutter 1 which is, at the same time, constantly pushed back towards the fabric to be, out, by the hand holding the machine.

It resultsfrom the, foregoing, that this machine, is very simple and light and that,

c consequently,;it may beconstructed at-small cost, that itis, actuated and manipulated by o1 1e'hand,in the same manner as'jcu'tting scissors, andthat it allows the cutting out, without anydifiiculty the desired number of thicknesses of fabrio.

The constructional arrangements described are, of course, given by way of exampleonly, the-form s, materials and dimensionsof the various constituent parts maybe modified ciple of the invention,

without dep artingthereby, from the,

1, machine for. cutting out seYQ al thicknesses of fab" 'jja horizon-f t tandem ner projecting under the lower face of the latter" a vertical guide postv integral with the said runner,a casing carrled at the a cutter upper end of the said guide post in the said guide post and a slide rod opera- 7 the machine during the 'cutting'out opera-tion. V r r V A1 hand machine for cutting outseveralthicknessesof fabric, comprising a hori;

zontal supporting member, a vertical; guide post integral with the said runner, a casing carried, by theupper end of said guide post, a cutter 'ada-ptedfto v slide vertically:- in said guidepost, a slide rod, connectedfto said cutter, a crank plate carried by thecasing,

a crank pinon said crankrplate, a pitman attached to said cranlrpin and to the slide rod, a combined guide member and control lever pivoted;on the casing, gearing in said. casing compr sing a, toothed segment ute grail with the control lever, a pinion gearing with the toothed segment, a toothed wheel integral with the said pinion, a second pinion integral withthe crank plate, a returning spring interposed. between the casing and gearing, a handle carried by the casingabove the control lever to form a support for the operators hand and'to insure the direction of the machine through the pile of fabric;

3,. A hand machine for cutting out several thicknesses of fabric comprising: a horizontal supporting runner,balls in the said runner projecting under the lower face of the latter,-a. vertical guide post integral with the said runner,va casing carried by the upper end of the saidguide post,.-a cutter vertically movableinthe said post,a slide-rod operatively connected to the cutter,an eccentric carried by the casing a strap on said eccentric attached to the sliderod, a control lever pivoted on the casing, a double toothed segment mounted in said casing -r-a. chain attached to the said'control lever and tofthe said toothed 'segment,a double pinion integral withthe eccentric, and areturning spring secured at one end to the casing and at the other end, to the toothed segment, a handlepivoted on the casingjabovethe control lever, abolt integral with'the handle, andfitting in a groove of 'the casinggfor adjusting the position of he 'a 'handl ative ygw he n r ver and constitutinga support for the operat th s e time 4. A hand machine for cutting out several thicknesses of fabric, comprising a sup porting runner, a vertically grooved guide post rigidly secured to said runner and projecting upwardly therefrom, a casing carried by the upper end of said post, a cutter slidably mounted in said guide post, interconnected gear means carried by said casing and operably connected With said cutter to impart a reciprocal movement thereto, a handle member adjustably mounted on said casing and extending rearwardly therefrom,

and a control lever pivotally mounted on said casing adjacent said handle memher and operably connected with said gear means, whereby said handle member and control lever may be manipulated by one hand of the operator to cut thefabrics and guide the cutter.

5. A machine as set forth in claim a, 7

characterized by an extensible and contractile spring member, operably connected with the casing and the cutter operating gear means, to assist in imparting the reciprocal movement of the cutting blade. 7 s

The foregoing specification of my hand machine for cutting out several thicknesses of fabric, signed by me this 3d day of,

February, 1922.

ETIENNE DUPLESSI S. 

